Question

我对使用mysql（5.6.17）的续集事务的问题，我有一个插入语句和两个应该全部完成的更新或者没有，最后transactions.create的howerver似乎回滚但是driver.update执行并且没有回滚和第三次更新trip.update语句而没有任何更改或回滚，控制台挂起并在几秒钟之后抛出此错误：

Executing (42a68c8e-8347-45af-b9a2-7b0e7a89606b): START TRANSACTION;
Executing (42a68c8e-8347-45af-b9a2-7b0e7a89606b): SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
Executing (42a68c8e-8347-45af-b9a2-7b0e7a89606b): SET autocommit = 1;
Executing (42a68c8e-8347-45af-b9a2-7b0e7a89606b): INSERT INTO `transactions` (`id`,`tId`,`total_price`,`company_share`,`driver_share`,`at`) VALUES (DEFAULT,'13',1000,100,900,'2016-07-04 10:44:43');
Executing (default): UPDATE `driver` SET `balance`=`balance` - 100 WHERE `id` = '1'
Executing (default): UPDATE `trip` SET `paid`=1 WHERE `id` = '13'
Executing (42a68c8e-8347-45af-b9a2-7b0e7a89606b): ROLLBACK;
5---SequelizeDatabaseError: ER_LOCK_WAIT_TIMEOUT: Lock wait timeout exceeded; try restarting transaction

交易部分是：

var Sequelize = require('sequelize');
var config = {};
config.sequelize = new Sequelize('mydb', 'root', null, {
    host: 'localhost',
    port: 3306,
    dialect: 'mysql',
    logging: true,
    pool: {
        max: 100,
        min: 0,
        idle: 10000
    },
    define: {
        timestamps: false
    }
});
require('sequelize-isunique-validator')(Sequelize);
var driver = require('./../models/driver.js')(config.sequelize, Sequelize);
var transactions = require('./../models/transactions.js')(config.sequelize, Sequelize);
var trip = require('./../models/trip.js')(config.sequelize, Sequelize);


return config.sequelize.transaction({isolationLevel:Sequelize.Transaction.ISOLATION_LEVELS.READ_COMMITTED},function (t) {
return transactions.create({tId: tripId, total_price: totalPrice, company_share: companyShare, driver_share: driverShare}, {transaction: t})
    .then(function (result) {
    return driver.update({balance: config.sequelize.literal('`balance` - '+companyShare)}, {where: {id: dId}}, {transaction: t})
        .then(function (result) {
            return trip.update({paid: 1}, {where: {id: tripId}}, {transaction: t});
        });
});

}).then(function (result) {
    RequestQueue.hmset(ticket,"ticketState",value.Paid);
    res.json({'status': 'success','change':(-company_share)});
}).catch(function (err) {
    global.console.log('5---'+err);
    res.json({'status': 'failed'});
});

我确定我的模型是正确的，因为我在其他地方使用它们没有任何问题，并且没有把它们放在这里以保持问题清洁和主题但是如果它有助于在评论中提问，tnx！< / p>

Answer 1

您应该在transaction对象中传递options参数。

    .then(function (result) {
        return driver.update({balance: config.sequelize.literal('`balance` - ' + companyShare)}, {
                    where: {id: dId},
                    transaction: t
                })
                .then(function (result) {
                    return trip.update({paid: 1}, {where: {id: tripId}, transaction: t});
                });

http://docs.sequelizejs.com/en/latest/api/model/#update

Sequelize Transactions：ER_LOCK_WAIT_TIMEOUT

1 个答案: